function mark(newm) {
	newm.style.backgroundColor = '#849d11';
	newm.style.backgroundImage = 'url("fileadmin/images/bg_green-trans.png")';
	newm.style.color = '#ffffff';
	
	//curm = document.getElementsByClassName("main_menu")[0].getElementsByClassName("active")[0];
	curm = document.getElementById("activem");
	curm.style.backgroundColor = 'transparent';
	curm.style.backgroundImage = 'url("fileadmin/images/bg-trans.png")';
	document.getElementById("activea").style.color = '#263805';
	
	document.getElementById("subm").style.visibility = 'visible';
}

function unmark(newm) {
	newm.style.backgroundColor = 'transparent';
	newm.style.backgroundImage = 'none';
	newm.style.color = '#263805';
	
	//curm = document.getElementsByClassName("main_menu")[0].getElementsByClassName("active")[0];
	curm = document.getElementById("activem");
	curm.style.backgroundColor = '#849d11';
	curm.style.backgroundImage = 'url("fileadmin/images/bg_green-trans.png")';
	document.getElementById("activea").style.color = '#ffffff';
	
	document.getElementById("subm").style.visibility = 'visible';
}